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Finding the Third Proportional to 177,514 and 389,453

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Solution

The third proportional to 177,514 and 389,453 is: 854,431.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,514 : 389,453 = 389,453 : x
  2. Step 2: Convert to fraction form
    177,514/389,453 = 389,453/x
  3. Step 3: Cross multiply
    177,514x = 389,453 × 389,453
  4. Step 4: Simplify right side
    177,514x = 151,673,639,209
  5. Step 5: Solve for x
    x = 151,673,639,209/177,514
  6. Step 6: Final answer
    x = 854,431.98

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.